Button-hole sewing-machine



(No Model.) 3 Sheets-Sheet 1.

W. RAEUGHLE.

BUTTON HOLE SEWING MACHINE. l No. 341,168. Patented May 4, 1886.

N. PETERS. PMloL-W E W, WuhinpmLDC.

(No Model.)

W RAEUGHLE BUTTON HOLE SEWING MACHINE.

No. 341,168. Patented May4, 1886.

N4 FEYERS, PhOlO-L'rlhognphm. Washington. D-C.

(No Model.) 3 Sheets-Sheet 3.

W. RAEUGHLE. BUTTON HOLE SEWING MACHINE.

No. 341 168. Patented May 4, 1886.

m fl esses Ilvelfiur win Aw %M/4 a, PETERS, Pmlu-Lhmnphnr. Washington,0. c.

UNITED: STATES PATENT OFFICE.

-WILLIAM RAEUOHLE, OF BOSTON, MASSACHUSETTS.

SUTTON-HOLE SEW|NG-M ACHlNE.'

SPECEPIQATION forming part of Letters Patent No. 341,168, dated ltIay 4,1886.

Application filed March 12, 1885. Serial No. 158,516.

'(No model.)

To aZZ whom it may concern:

Be it known that I, TILLIAM RAEUCHLE, a citizen of the United States,residing at Boston, in the county of Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Button Hole SewingMachines; and I do hereby declare that the same are fully described inthe following specification andillustrated in the accompanying draw-1ngs.

This invention relates to improvements inbutton-hole sewing-machines;and it is carried out as follows, reference being had to theaccompanying drawings, where Figure 1 represents a side elevation of themachine. Fig. 2 represents a vertical section on the line A 13, shown inFig. 1. Fig. 3represents a cross-section on the line C D, shown inFig. 1. Fig. 4 represents an adjustablecanrconnecting device, wherebyeither one of two cams of different sizes may be brought into operationfor producing vibratory movements of the reciprocating needle-bar. Fig.5 represents an enlarged cross-section on the line E F, shown in Fig. 1.Fig. 6 represents a bottom view of the machine. Fig. 7 repre sents asection on the line G H in Fig. 6, showing the adjustablespreader-lever. Fig. 8 represents a section on the lineIK, shown in Fig.7. Fig. 9 representsa perspective view of the cam-bolt on thespreader-lever. Fig. 10 reprepresents a longitudinal section of lowertension device on the line L M, shown in Fig. 6. Fig. 11 represents aplan view of the clamps. Fig. 12 represents a side elevation of thesaidclamps, and Fig. 13 represents'a plan View of the clamps with theclamping-cam removed.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

a is the work-supporting table or horizontal part of the frame, asusual, and?) I) represent the goose-neck of the machine in the ordinarymanner.

0 is the horizontal shaft located in bearings in the goose-neck portionb,which shaft is the means of operating the needle-bar at up and down,as usual. The shaft 0 has attached to it the pinion c, gearing into theteeth of gearwheel e, that is attached to the upper end of verticalshaft 6, located in bearings in the gooseneck portion 2), as shown inFig. 1.

e is a gear-wheel secured to vertical shaft e and gearing intogear-wheel f, secured to horizontal driving -shaft f, that is supportedin the hearing I) on the goose-neck part I), and is provided in itsouter end with the driving or balance wheel f in the ordinary way. Theneedle-bar (Z is guided up and down in the horizontallyadjustableguideblock, 9, the lower end of which is attached to or made in onepiece with the horizontal connecting-rod 9', that is moved forward andback in a horizontal direction with a variablethrow, so as to vibratethe reciprocating needle-bar more or less, according to the desireddepth of the stitches to be formed in the material in which thebutton-holes are to be made. To impart such motion to connecting-rod g,I secure to the shaft 6 a double-faced cam-disk, 71 having an uppercam-groove, h, and a lower cam-groove, It", (shown in Fig. 4,) one ofsuch cam-grooves being made with a throw larger than the other. To theinner end of connectrod 9 is secured,.bymeaus ofset-screw g, the

block 9, which can be adjusted horizontally in relation to thec0nnecting-rod g as may be required, for which purpose a slottedperforation, gfl is made through block 9, for the set-screw g to passthrough, as shown in Fig. 4. To the under side of block 9 is secured thebracket g having a vertical slot-hole, 9, through which passes looselythe setscrew g the inner end of which is screwed into thevertically-adjustable frame h having a pin and roll, If, in its upperend and a similar pin'and roll, 71 in its lower end as shown in Fig. 4.By adjusting the position of the frame h in relation to the bracket fthe lower pin and roll, k may be inserted in the lower cam-groove, h, oncam h, or the upper pin and roll, h, may be inserted in the uppercanrgroove, as may be desired, and as one of said cam-grooves has agreater pitch or throw than the other it will be seen that theconnecting-rod g, needleblock g, and needlebar (I will be vibrated moreor less, according to the required'depth of the stitch on the edge ofthe button-hole.

The rear end of the piece is guided and supported in the bearing 1),secured to gooseneck portion 1), as shown in Figs. 1., 2, and 3.

To the top of goose-neck Z) is secured aframe or bracket, 1', having inits forward end the usual tension-disks, t, and in its rear end thespool t, mounted loosely on the spindle if. About midway between them islocated the thread-guide i. (Shown in Figs. 1 and 2.) To one side ofbracket 5 is hung upon the pin k the lever k, the upper end of which hasan eye, It, for the thread Z to pass through, and in its lower end ithas a pin and roll, 73, actuated by the cam-disk 76, secured to shaft 0,

as shown in Figs. 1 and 2. The lower end of lever k is yieldingly heldagainst the face of the cam 76' by the influence of the coiled spring73, located on the stud or pin It, or it may be so operated by means ofany other suitable spring, coiled, flat, or elliptic. The cam is soshaped that by its action no nippers are required on the needle-barcarrier, because at the time that the needle rises to make the loop thetake-up lever slackens the thread sufficiently to allow the loop to bemade.

The spreader-bar is made in two parts, m and n, the latter being hung onthe fulcrumpin a, secured to the under side of the plate a, as shown inFig. 6, and provided in its rear endwith a pin and roll, a, actuated bythe grooved cam-disk 0, secured to the lower end of shaft 6. Thelongitudinal adjustment ofthe spreader-lever is obtained by means of thebolt a, the ends of which rest in the perforated ears min the rear endof lever m, and to which itisfirmly secured by means of nutn. (Shown inFig. 7.) Midway between its ends the bolt a has an eccentric cam, 01",(shown in Figs. 7 8, and 9,) such eccentric portion of the bolt apassing through a slotted perforation, a, in the end of lever 91, asshown in Fig.8, and it will thus be seen that the lever m can beadjusted longitudinally in relation to the lever a simply by turning thebolt n a little around its axis, and after the desired adjustment isobtained the said bolt n is firmly secured in position by tightening thenut n.

For the purpose of adjusting the spreaderlever in a lateral direction, Iemploy two screws, N and N, the former screwed through the projectingend of lever n and having its end pressing against the side of lever m,as shown in Figs. 6 and S. The latter screw, N, passes loosely through aslotted perforation,N, in lever 01, its end being screwed intoascrewthreaded perforation in lever m, as shown in said Figs. 6 and 8.The rear end of lever on has a curved seat, m", on which rests the levera, as shown in Fig. 8. By tightening screw N and loosening screw N, orvice versa, the proper position of the lever m in relation to lever n ina lateral direction can easilybe obtained.

To the needle-bar d, at its lower end, is secured the shell (2, in whichare located the tension-disks d d, upon the screw d the said disks beingheld against each other with a proper tension by means of tension-spring(1*, as shown in Fig. 5. The disks (1 d are 10- lated in a line with theneedle d and opposite to the latter is'made a slotted perforation, d, onthe shell d, to permit the thread to enter the latter from above, and topass between the disks d (1 around the pin (1 on its way to the eye inthe needle end. By this arrangement the thread is caused to draw acrossthe pin d, instead of against the disks themselves, the latter onlyserving the purpose of pinching the thread to cause sufficient tensionto resist the weight of the thread.

To the under side of the bed-plate a is secured the bracket 1), in whichis located the horizontal spindle 1), such spindle being lat erallyadjustable in said bracket and secured by means of a screw, 1)". (Shownin Figs. 6 and 10.) One end of said spindle 1) has a conical head, pserving as a support for oneend of the lower spool, q, the other end ofsaid spool being supported on the conical projection 1', attached to thebent end of the longitudinallyyielding spindle 0*, that is supported inthe forked lower end of bracket 1), and there provided with atension-spring, 1', and a regulating thumb-nut, o as shown in Fig. 10.The tension-spring r causes the spool qto be held on the stationaryconical projections p 0- with more or less tension, as required.

In Figs. 11, 12, and 13, s is the clamp-plate with its post s, to whichis hinged at s s the clamp-arms s s, such arms being pressed toward eachother by means of springs s in the usual manner. The arms 8 s are spreadfrom each other, as usual, by means of the spreaderarm 8 having theusual cam or eccentric, 5, arranged between the clamp-arms, as shown inFigs. 11 and 13.

To the outer end of spreader-arm s is hinged the spring-actuatedpawl-lever the inner end of which is made to engagein the toothed rack 8secured to plate 8, as shown in said Figs. 11 and 13.

By the employment of spring-pawl s and rack s the arm 8 can be securedin any desired position after the clamp-arms s s have been spread apartthe desired distance.

Having thus fully described the nature, construction, and operation ofmy invention, I wish to secure by Letters Patent, and claim 1., Inabutton-holesewing-machine,theherein-described adjustable vibratingdevices, consisting of the rotary cam h, having the une-- qualcam-grooves h and h, formed in its opposite faces, in combination withthe verticallyadjustable frame h and its pins and rolls h h", theneedle-bar, the connecting-rod, g, carrying the frame If, the shaftcarrying the rotary cam, and means for rotating said shaft, or aprojection thereon, as and for the purpose set forth.

2. The combination, with the reciprocating needle-bar carrying aneye-pointed needle, of a connecting-rod actuated by a cam on the mainshaft and giving vibration to the needlemating-arm 8 the spring-actuatedpawl 8 IO bar,the10oper or loop-spreader and the spreadand rack 8mounted on the plate 8, substaner-iever, composed of the parts m and n,the tially as described.

bolt 7?, having a cam, if, and the adjusting- Intestimony whereof I haveaffixed my sig screws N N. I nature in presence of two witnesses.

3. The combination, with the clamp-plate s, \VILLIAM RAEUCHLE. of theclamp-arms s pivotally mounted at s, \Vitnesses: springs 8*, by whichsaid arms are normally ALBAN ANDREN,

thrown toward each other, the cam s, the act- HENRY CHA'DBOURN.

